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Interface com.sun.java.swing.ListCellRenderer
- public interface ListCellRenderer
Identifies components that can be used as "rubber stamps" to paint
the cells in a JList. For example, to use a JLabel as a
ListCellRenderer, you would write something like this:
class MyCellRenderer extends JLabel implements ListCellRenderer {
public MyCellRenderer() {
setOpaque(true);
}
public Component getListCellRendererComponent(
JList list,
Object value,
int index,
boolean isSelected,
boolean cellHasFocus)
{
setText(value.toString());
setBackground(isSelected ? Color.red : Color.white);
setForeground(isSelected ? Color.white : Color.black);
return this;
}
}
- See Also:
- JList, BasicListCellRenderer
-
getListCellRendererComponent(JList, Object, int, boolean, boolean)
- Return a component that has been configured to display the specified
value.
getListCellRendererComponent
public abstract Component getListCellRendererComponent(JList list,
Object value,
int index,
boolean isSelected,
boolean cellHasFocus)
- Return a component that has been configured to display the specified
value. That component's
paint
method is then called to
"render" the cell. If it is necessary to compute the dimensions
of a list because the list cells do not have a fixed size, this method
is called to generate a component on which getPreferredSize
can be invoked.
- Parameters:
- list - The JList we're painting.
- value - The value returned by list.getModel().getElementAt(index).
- index - The cells index.
- isSelected - True if the specified cell was selected.
- cellHasFocus - True if the specified cell has the focus.
- Returns:
- A component whose paint() method will render the specified value.
- See Also:
- JList, ListSelectionModel, ListModel
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